When you are unable to charge the battery:This may be the result of one of the following three cases.Your charger may be out of order. Contact your nearestdealer.You may be attempting to use the phone in an overlyhot/cold temperature. Try changing the chargingenvironment.Your battery may have not been connected to thecharger properly. Check the connector.When you are unable to input data into yourContacts:Your Contacts memory may be full. Try deleting someentries from your Contacts.When you are unable to select a certain function:You may not have subscribed to that function, or yournetwork service provider may be in an area where suchservice cannot be provided. Contact your local serviceprovider.Performance and safetyThe following list shows how to maintain your mobile phone,together with precautions to take.Keep your mobile phone and its accessories out of thereach of children.Maintain your mobile phone in dry conditions and keep itwithin normal operating temperatures. Temperatureshigher than 55°C (131°F) or lower than -20°C (-4°F) maydamage your phone.Do not use or store your mobile phone in dusty, dirty areas.Do not attempt to disassemble your mobile phone.Do not drop or cause severe impact to your mobile phone.Do not use chemical products, cleaning solvents ordetergents to clean your mobile phone.If your mobile phone does not work properly, contact yourdealer immediately.Use only authorized batteries, battery chargers andaccessories. Any malfunction or damage caused by theuse of unauthorized batteries, battery chargers andaccessories will void the limited product warranty.Ensure that the earthing points of the battery and batterycharger do not come in contact with conductive objects. 113Troubleshooting checklist & Performance and safetyIf you experience any problem while using your mobilephone, please refer to the following checklist. If the problemstill persists, contact your dealer or nearest service center.When the “Insert SIM Card” message appears:Make sure the SIM card is correctly installed. Check to seeif the SIM card is working properly. If it does not work, try toclean the contact points of the card. If it is out of order, takeit to the nearest service center.When the “Handset locked enter password”message appears:Enter the phone password. If you cannot remember thepassword, contact the nearest service center.When the “Enter PIN1” message appears:InputPIN1. If you cannot remember it, contact the nearestservice centre. You can still receive calls even if your mobilephone becomes locked after entering the incorrect PIN1 onthree consecutive attempts.When the “No service” or “Network failure”message appears:Check the SSI (Signal Strength Indicator) state. If youcannot make a connection in underground areas or inbuildings where signal strength may be low, try moving toanother place. If you still cannot make a connection, contactthe nearest service center.When audio quality is poor:End the call and try again.When the other party cannot hear you speaking:Your phone may be set to MUTE. Disable the MUTEfunction.When battery lifetime is shorter than usual:This may happen when you are in an area with low signalstrength. Turn off your phone when it is not in use. Changethe battery when battery energy is exhausted.When your mobile phone does not turn on:Make sure your battery is charged. Check to see if yourphone works while recharging the battery.When you are unable to send a message:Either you are not registered to receive an SMS service, oryou may be in an area where your network service providercannot provide such a service.When you are unable to make a call:Your phone may be set to “fixed dial.” Cancel the “fixed dial”function.Troubleshooting checklist112